77678990 divided by 869 
We're looking to find how many times 869 goes into 77678990.

On to step 1:
7 divided by 869 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 869

On to step 2:
When dividing 77 by 869, we get 0 with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Take the next digit (6) from the dividend and append it to 77, then repeat: 776 / 869

Moving on to step 3:
776 divided by 869 is 0 with a remainder of 776.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 776 leaves us with 776.
Append the next digit (7) from the dividend to 776 and continue with: 7767 / 869

Let's proceed to step 4:
869 can be fit into 7767 8 times, resulting in a remainder of 815.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtracting 6952 from 7767 leaves us with 815.
Take the next digit (8) from the dividend and append it to 815, then repeat: 8158 / 869

Let's proceed to step 5:
869 goes into 8158 9 times with a remainder of 337.
Use 9 as the next digit of our solution. 
Result so far: 89.0
Subtract 7821 from 8158 to get 337.
Include the next digit (9) from the dividend after 337, then repeat: 3379 / 869

Going ahead to step 6:
869 goes into 3379 3 times with a remainder of 772.
Use 3 as the next digit of our solution. 
Result so far: 893.0
Subtract 2607 from 3379 to get 772.
Include the next digit (9) from the dividend after 772, then repeat: 7729 / 869

Step 7:
7729 divided by 869 is 8 with a remainder of 777.
Put 8 as the next digit of the answer. 
Result so far: 8938.0
If we subtract 6952 from 7729, we get 777.
Append the next digit (0) from the dividend to 777 and continue with: 7770 / 869

Advancing to step 8:
869 can be fit into 7770 8 times, resulting in a remainder of 818.
The next digit of our result is 8. 
Result so far: 89388.0
Subtracting 6952 from 7770 leaves us with 818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8180, and continue the process.

On to step 9:
8180 divided by 869 is 9 with a remainder of 359.
The next digit of our result is 9. 
Result so far: 89388.9
Deduct 7821 from 8180 and we're left with 359.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Step 10:
869 can be fit into 3590 4 times, resulting in a remainder of 114.
Record the quotient 4 as the next digit in the result. 
Result so far: 89388.94
If we subtract 3476 from 3590, we get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Let's proceed to step 11:
869 can be fit into 1140 1 times, resulting in a remainder of 271.
Use 1 as the next digit of our solution. 
Result so far: 89388.941
If we take 869 away from 1140, we end up with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Moving on to step 12:
The number 869 fits into 2710 3 times, leaving a remainder of 103.
Record the quotient 3 as the next digit in the result. 
Result so far: 89388.9413
Subtracting 2607 from 2710 leaves us with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Moving on to step 13:
1030 divided by 869 is 1 with a remainder of 161.
The next digit of our result is 1. 
Result so far: 89388.94131
The remainder is 161 after subtracting 869 from 1030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Going ahead to step 14:
1610 divided by 869 is 1 with a remainder of 741.
Use 1 as the next digit of our solution. 
Result so far: 89388.941311
If we subtract 869 from 1610, we get 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

After the division, we end up with 89388.941311 and a remainder of 7.41e-05.